International Electrotechnical Commission

Uninterruptible power systems (UPS) – Part 5-3: DC output UPS – Performance and test requirements - Edition 1.0
 N 62040-5-3

Annotation

This part of IEC 62040 establishes the performance and test requirements applied to movable, stationary and fixed electronic DC uninterruptible power systems (DC UPS) that

– are supplied from an AC voltage source not exceeding 1 000 V,

– deliver a DC output voltage not exceeding 1 500 V,

– incorporate an energy storage device, and

– have a primary function to ensure continuity of DC power to loads.

This document specifies performance and test requirements of a complete DC UPS and not of individual DC UPS functional units. The individual DC UPS functional units are dealt with in IEC publications referred to in the bibliography that apply so far that they are not in contradiction with this document.

DC UPSs have been developed over a wide range of power, from less than a hundred watts to megawatts, to meet requirements for availability and quality of power to a variety of loads. Refer to Annexes A and B for information on typical DC UPS configurations and topologies.

This document also includes DC UPS performance and test requirements related to interrupters, isolating switches, and tie switches, if any, which are integral to the DC UPS. These components interact with other functional units of the DC UPS to maintain continuity of load power.

This document does not cover

– conventional AC input distribution boards and their associated switches,